Production of Wall Tiles Containing Ulexite Waste at Different Sintering Temperatures

Year 2020, Volume: 10 Issue: 2, 463 - 473, 15.04.2020

Kemal Köseoğlu Hakan Cengizler Lina İsrail

https://doi.org/10.17714/gumusfenbil.655170

Abstract

Experimental compositions were prepared by the additions of ulexite
concentrator waste to a standard wall tile body sintered at different
temperatures. Tests of linear firing shrinkage, water absorption, and fired
bending strength (eğilme mukavemeti) were done. XRD analyses were conducted to
determine major crystalline phases in wall tile bodies. SEM-EDX analyses were
performed to
study the microstructural evolution of the standard and experimental wall tile bodies. Colorimetric analyses were also made. The wall tile body containing 5 weight percent ulexite
concentrator waste fired at 925 ^oC for 6 minutes was determined to
be the optimal composition with 0.60 % of linear firing shrinkage, 17.66 % of
water absorption, and 208.60 of kg/cm² fired bending strength
(eğilme mukavemeti) . Sintering
temperature was reduced from 1182 ^oC of industrial practice down to
925 ^oC. Utilization of ulexite
concentrator waste in tile bodies will help reduce energy costs in favour of
the environment and economy.

Keywords

Wall Tile, Sintering, Ulexite Waste

Üleksit Atığı İçeren Duvar Karolarının Farklı Sinterleşme Sıcaklıklarında Üretimi

Abstract

Üleksit konsantratör atığının standard duvar karosu bünyesine katılması
ve değişik sıcaklıklarda sinterleşmesiyle deneysel numuneler hazırlanmıştır.
Doğrusal pişme küçülmesi, su absorpsiyonu ve pişme bükülme testleri
yapılmıştır. X-ışınları kırınım analizleri duvar karolarının kristal fazlarını
tayin etmekte; SEM-EDX analizleri standard ve deneysel duvar karolarının mikro
yapılarındaki değişimlerin anlaşılmasında kullanılmıştır. Renk analizleri de
gerçekleştirilmiştir. 925°C de 6 dakika pişirilen %5 üleksit konsantratör atığı
%0.6 doğrusal pişme küçülmesi, %17.66 su emme ve 208.6 kg/cm² pişme
bükülmesi değerleriyle optimum konsantratör atık derişimi olarak
belirlenmiştir. Endüstriyel üretimde 1182°C olan sinterleşme sıcaklığı 925°C’
ye düşürülmüştür. Üleksit konsantratör atığının duvar karolarında kullanımı
enerji maliyetlerini düşürmeye yardım ederek ekonomi ve çevreye yarar
sağlayacaktır.

Keywords

Duvar Karosu, Sinterleşme, Üleksit Atığı

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